package adv1;

/**
 * @author oldliu
 * @since 1.0
 */
public class SysTest {
    public static void main(String[] args) {
        //long time=System.currentTimeMillis();
        //System.out.println(time);
        long time=System.nanoTime();

        ///System.out.println(time/1000/3600/24/365);
        for (int i = 0; i < 100; i++) {
            System.out.println(i);
        }
        //long end=System.currentTimeMillis();
        long end=System.nanoTime();
        System.out.println("耗时："+(end-time)+"纳秒");
    }
}
